// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef NET_SPDY_SPDY_SESSION_TEST_UTIL_H_
#define NET_SPDY_SPDY_SESSION_TEST_UTIL_H_

#include <stdint.h>

#include <string>

#include "base/message_loop/message_loop.h"
#include "base/pending_task.h"

namespace net {

// SpdySessionTestTaskObserver is a MessageLoop::TaskObserver that monitors the
// completion of all tasks executed by the current MessageLoop, recording the
// number of tasks that refer to a specific function and filename.
class SpdySessionTestTaskObserver : public base::MessageLoop::TaskObserver {
public:
    // Creates a SpdySessionTaskObserver that will record all tasks that are
    // executed that were posted by the function named by |function_name|, located
    // in the file |file_name|.
    // Example:
    //  file_name = "foo.cc"
    //  function = "DoFoo"
    SpdySessionTestTaskObserver(const std::string& file_name,
        const std::string& function_name);
    ~SpdySessionTestTaskObserver() override;

    // Implements MessageLoop::TaskObserver.
    void WillProcessTask(const base::PendingTask& pending_task) override;
    void DidProcessTask(const base::PendingTask& pending_task) override;

    // Returns the number of tasks posted by the given function and file.
    uint16_t executed_count() const { return executed_count_; }

private:
    uint16_t executed_count_;
    std::string file_name_;
    std::string function_name_;
};

} // namespace net

#endif // NET_SPDY_SPDY_SESSION_TEST_UTIL_H_
